Welp, pulled the trigger
Thread Starter
Burning Brakes
Joined: Dec 2017
Posts: 832
Likes: 162
From: New Orleans LA
Welp, pulled the trigger
I just ordered the maggy heartbeat with the 3" pulley, texas speedway headers and x pipe. I have a local shop installing it when everything comes in. I have a 2017 grand sport. I can't wait to get this thing going. I'll post dyno numbers when its complete. I decided to go with the PD charger because I will only use the car as an everyday driver. I'll enjoy the instant torque, and it will have less parasitic loss during normal driving. It should run between 8 to 10 lbs of boost and be around 600 whp hopefully.
Thread Starter
Burning Brakes
Joined: Dec 2017
Posts: 832
Likes: 162
From: New Orleans LA
I was told the 3" will give me 8 to 10 psi. Do you know someone that had the 3"producing 13 psi? If it gets that high we'll get a bigger pulley. It still comes with the stock pulley. I'll give up HP to protect the motor. I believe due to the headers and x pipe being catless, it will drop the PSI a bit.
Racer
Joined: Dec 2015
Posts: 339
Likes: 78
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Drifting
Joined: Jun 2000
Posts: 1,577
Likes: 99
From: Dubai, UAE
I was told the 3" will give me 8 to 10 psi. Do you know someone that had the 3"producing 13 psi? If it gets that high we'll get a bigger pulley. It still comes with the stock pulley. I'll give up HP to protect the motor. I believe due to the headers and x pipe being catless, it will drop the PSI a bit.
3" pulley is 76mm, check this post for reference https://www.corvetteforum.com/forums...post1594843195
Thread Starter
Burning Brakes
Joined: Dec 2017
Posts: 832
Likes: 162
From: New Orleans LA
My heartbeat kit came with a 95mm (3.75") pulley. This gave about 7.5 psi with the stock engine/exhaust.
3" pulley is 76mm, check this post for reference https://www.corvetteforum.com/forums...post1594843195
3" pulley is 76mm, check this post for reference https://www.corvetteforum.com/forums...post1594843195
Safety Car
Joined: May 2003
Posts: 3,520
Likes: 821
From: Brighton Mi
I just ordered the maggy heartbeat with the 3" pulley, texas speedway headers and x pipe. I have a local shop installing it when everything comes in. I have a 2017 grand sport. I can't wait to get this thing going. I'll post dyno numbers when its complete. I decided to go with the PD charger because I will only use the car as an everyday driver. I'll enjoy the instant torque, and it will have less parasitic loss during normal driving. It should run between 8 to 10 lbs of boost and be around 600 whp hopefully.
Pro
Joined: Sep 2000
Posts: 678
Likes: 310
From: McKinney Texas
Safety Car
Joined: May 2003
Posts: 3,520
Likes: 821
From: Brighton Mi
Pro
Joined: Sep 2000
Posts: 678
Likes: 310
From: McKinney Texas
Yes, its a LT4/Z06.
I was a little over 750whp on E85 (E65 at the time of the tune/dyno) before the swap. (FBO/H/C/I & ported stock blower/snout, 103mm TB, port injection on stock blower, full flex-fuel setup, LG full cooling setup, etc.)
So this round is basically a blower swap only using the kit upper pulley that comes with the Magnuson and retaining the mods that were already in place.
I do have an 18% lower already on that will stay.
It will be interesting to see what it makes.
My goal was to build something close to 1000HP at the crank or a little less without having to use meth, with a full flex-fuel setup that will be somewhat reliable.
Im close, so hopefully this gets me a little closer.
I was a little over 750whp on E85 (E65 at the time of the tune/dyno) before the swap. (FBO/H/C/I & ported stock blower/snout, 103mm TB, port injection on stock blower, full flex-fuel setup, LG full cooling setup, etc.)
So this round is basically a blower swap only using the kit upper pulley that comes with the Magnuson and retaining the mods that were already in place.
I do have an 18% lower already on that will stay.
It will be interesting to see what it makes.
My goal was to build something close to 1000HP at the crank or a little less without having to use meth, with a full flex-fuel setup that will be somewhat reliable.
Im close, so hopefully this gets me a little closer.
Last edited by MCK_Z06; Dec 21, 2018 at 01:55 PM.
Pro
Joined: Sep 2000
Posts: 678
Likes: 310
From: McKinney Texas
I actually had to dial the fan back a bit because on cooler days it took a bit to warm the engine and oil up.
Otherwise the temps are inline with my NA Z06 (minus the higher IAT's from the PD blower.)
170-180ect, 175-185eot, IAT's coming out of the blower are around 90-100deg. unless its 100+deg. and I'm beating on the car then I have seen it hit 150deg.
I actually live close to LG's HQ so I just had them install it, so it was easy.. lol!